Accounting Error

Satan is paying a
diplomatic visit to St. Peter. They sip tea
together in St. Peter's palatial office, and
Satan gazes out of the wall-sized window at the
cloudscape beyond with its bewinged,
behaloed and beharped inhabitants. He
spots Joan of Arc, Mother Teresa,
Morecambe and Wise, Alan Turing,
Tamburlaine —
— "You've got Tamburlaine? He's meant to be
one of ours."
— "Head Office computerised our
accounting functions. They sacked the
Recording Angel and replaced him by a
cumulated–sin-score spreadsheet. But
the Excel developer missed
some cells out of the SUM range. It's fixed now,
but no-one noticed the bug for years —"
He gestures, and Satan sees Pol Pot,
Genghis Khan, Vlad the Impaler, Milošević, ...